17. Use the theory of residue to evaluate the following definite integrals r2 (a) /" (b) / do 2+ cos 0 ' cos 30d0 5 – 4 cos 0' - cos 20d0 1 — 2а сos @ + a2 (-1 < a < 1), (c) where (4) / sin?" Odo where n = 1,2, ....
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Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
Please solve 17(b) and 17(c)
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